Listen to Thennankeeththu online. Thennankeeththu is a Tamil language song and is sung by M.B. Sreenivasan, P. B. Sreenivas and S. Janaki. Thennankeeththu, from the album P B Sreenivos Legends Vol 5, was released in the year 2003. The duration of the song is 3:04. Download Tamil songs online from JioSaavn.